Sentences with phrase «high levels of radon gas»
The natural radioactivity of the Marcellus Shale has caused concern since the mid-1980s, when high levels of radon gas were found in the basements of homes in Marcellus, a town in upstate New York, where the shale reaches the surface.
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Some of Egypt's ancient monuments harbour a more insidious threat — they contain high levels of the radioactive gas radon.
Very high levels of radioactivity from radon gas have been found in abandoned mines used by prospectors in Southwest England.
Radon is a radioactive, odorless, colorless gas that comes out of the ground in areas that have high levels of decaying uranium.
Currently, millions of U.S. homes have moderate to severe physical housing problems, including dilapidated structure; roofing problems; heating, plumbing, and electrical deficiencies; water leaks and intrusion; pests; damaged paint; and high radon gas levels.